baber/WOPTO huggingface dataset:
Patent GB-1097259-A (GB)
Title: A microscope combined with a vacuum device, such as a rod dosimeter
IPC: G02B21/00
Filed: 1966-02-18
Abstract: 1,097,259. Optical apparatus. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Feb. 18, 1966 [Feb. 18, 1965], No.7269/66. Heading G2J. A dosimeter for measuring doses of X-radiation, for example, comprises an electro-meter 6 having a quartz filament 7 which is imaged by an objective lens 8 on to a transparent disc 9 carrying a reading scale, the position of the filament image relative to the scale being observed through an eyepiece 10, and is characterized in that the transparent disc 9 seals a vacuum chamber which contains the electro-meter and objective. The electro-meter 6, the lenses 8, 10 and the disc 9 are mounted in a tubular housing 1. Two concentric annular electrodes 2, 3 of different materials are also mounted in the tube 1 adjacent the filament 7. On application of a radiation to be measured the filament 7 is deflected by the voltage developed in consequence of the difference in yield of secondary emission electrons by the two electrodes.
Patent GB-594897-A (GB)
Title: Improvements in or relating to moulds for use in building walls
IPC: E04G11/18
Filed: 1945-03-22
Abstract: 594,897. Casting concrete walls in situ. HARKNESS, J. M., HARKNESS, G. K., and SCRUBY, B. March 22, 1945, No. 7289. [Class 20(ii)] Cavity walls are cast course by course in moulds comprising end frames 1 of inverted U-form connected by longitudinal tubes 7 which carry the side moulds 6 by a parallel linkage 8, the side moulds taking up a position determined by lugs 9 thereon engaging stops 10 on the end frames, and having handles 11 for lifting the side moulds clear of the cast course, preparatory to repositioning at a higher level. Cores 13 for forming the wall cavity, have side and top plates and are secured by projections 12a to downwardly projecting legs 12 on the end frames. The cores may be adjustablymounted, and the inverted U-shaped frame may be formed of adjustable section to suit different thicknesses of wall. End plate 5 for the moulds seat in channels on the end frames, and may be shaped to form a frog in the end of the cast wall section. Angle and T-shaped cores are provided for forming corners of walls and for the junction of partition walls. Specifications 140,284, [Class 20(ii)], and 550,564 are referred to.
Patent GB-1162633-A (GB)
Title: Electrical Switch Circuits
Inventor: RICHARDSON DAVID
IPC: H03K17/60
Filed: 1966-02-18
Abstract: 1,162,633. Transistor gating circuits. ASSOCIATED ENG. Ltd. 17 Feb., 1967 [18 Feb., 1966], No. 7346/66. Heading H3T. A switch circuit comprises a pair of transistors TR1, TR2 connected between an input T1 and an output T2 is controlled by a balanced constant current source R3, TR3, R4, TR4 which in one state generates a current to close the switch, and in the other state is turned off to open the switch. When a negative control signal is applied to terminal T3, TR5 becomes conductive and turns off transistor TR6 so that the current from TR3, TR4 turns on TR1, TR2 to connect input T1 to output T2. When a positive signal is applied to T3, TR6 conducts, and current is shunted through TR6, Z1 to turn off TR3, TR4 and hence TR1, TR2.
Patent GB-712711-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B60L7/04
Filed: 1952-03-21
Abstract: 712,711. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., LEDGER, R., and TURRALL, J. C. Dec. 22, 1952 [March 21, 1952], No. 7384/52. Class 38(3) Rheostatic braking of an electric traction motor is effected by connecting its armature in a closed circuit with a braking resistance, substantially constant braking effort, over at least a portion of the speed range of the motor, being obtained by exciting the field winding at a value which is an inverse function of the current in the closed circuit. As shown, rheostatic braking is initiated by disconnecting the armature 1 of the motor from its supply and connecting it in a closed circuit with the main starting resistance 4 and a braking resistance 11, whilst the motor series field winding 2 is separately connected to an exciter 15 driven by an auxiliary motor 17. A field winding 22 of the exciter is energized in accordance with the difference between a constant voltage obtained from source 23 and a voltage, responsive to the current in the closed braking circuit, derived from section 24 of resistance 11. Thus, the motor field strength is increased as the braking-current is reduced. To maintain the braking effort over the lower speed ranges a selected resistance contactor 7, 8, 9, or 10, is closed at a certain speed to reduce the resistance 4. This contactor is controlled by relay coil 16 in the circuit of the series field winding 2. A field winding 21 of the exciter is energized in proportion to the armature current of the motor 17 and compensates for changes in 'the supply voltage to the auxiliary motor. When both the main and auxiliary machines are cold the increased current in the shunt field winding 19 causes sufficient reduction of the speed of the auxiliary motor to compensate for the reduced resistance of the field winding 2. In a series-parallel arrangement involving four motors operated in pairs, a single exciter is provided for each of the pairs of traction motors. An auxiliary motor drives both exciters, and one of the pairs of traction motors has a single resistance which acts both for starting and braking, being tapped for control of the associated exciter field winding, Fig. 3 (not shown). In a modified fourmotor system, only one exciter is used during braking for supplying the field windings of the traction motors in series. Each pair of armatures of the main motors is connected in a separate closed circuit, but the control of the excitation is effected by one circuit only, the motor characteristics being sufficiently alike for changes of current in one circuit to decide the degree of excitation for both circuits, Fig. 4 (not shown). During rheostatic braking operation the motor field windings may be connected in parallel-pairs, and the armature circuits may be connected in parallel.
Patent GB-334873-A (GB)
Title: Improvements in or relating to enclosures for horticultural, incubation, propagation, or other similar purposes
IPC: A01G9/24
Filed: 1929-03-07
Abstract: 334,873. Godfrey, E. L., and Wrentmore, G. W. March 7, 1929. Air-heating stoves. - Enclosures for horticultural, incubation, propagation, and other similar purposes are provided with heating apparatus incorporating a circulation system for heated air mounted in a housing and including a jacket or chamber within which the air is adapted to be heated, a flue extending from the jacket into the space to be heated, and another flue communicating with the jacket and also with the space to be heated, the jacket being heated from the exterior by virtue of another jacket or space in which the heating gases from a lamp are circulated means being provided for adjusting the angle of the housing relatively to the lamp. The heated gases from an oil burner a circulate in a cylinder b closed at its upper end and surrounded by a jacket c. From the lower part of the cylinder b the heated gases ascend through a flue or outer jacket d and escape through a central flue f and a cowl g. A leakage of heated gases may take place between the tubes f. From the upper part of the jacket c and diametrically across it extends a pipe leading into a garden frame, or like enclosure, and into the lower part of the jacket extends a pipe h communicating with a pipe k forming an outlet from the frame. The air in the jacket c is heated by the heated gases circulating round the jacket and passes through the pipe i into the frame, colder air from the latter passing into the jacket through pipes k, i. Fresh air may be drawn in through a slide valve. The, heating apparatus may be provided with non- conducting material for conserving the heat. The pipe i may also be lagged, and may be perforated for the escape of condensation water. Indicators, recording instruments, moisture pans, and levelling or locating devices may be incorporated in the apparatus. The heating apparatus is provided with a large weather-proof housing having a sliding cover l and a side door m may be provided with a window. The housing k<1> is angularly adjustable relatively to the lamp by means of a slotted arm a<1> and a screw and nut a<2>. The lamp may have a large reservoir and one or more burners, with automatic heat-regulating controls. Specification 323,248 is referred to.
Patent GB-882983-A (GB)
Title: Improvements in alloy steel
IPC: C22C38/00
Filed: 1958-03-07
Abstract: A largely austentic stainless steel has the following percentage composition, by weight:-  .Cr.18 -21 .Mn.0 -17 .N.0,1- 0,5 .Ni.2 - 8 .Si.up to 1 .C.up to 0,12 .Fe.and incidental elements the balance, the relative amounts of Ni, Mn and N being such that the N is fully soluble in the steel in the liquid and solid phase. Preferred relative amounts of Ni, Mn and N in the alloy may be found from a three-dimensional graph accompanying the Specification.
Patent GB-1128482-A (GB)
Title: Filter candle and jacket
IPC: B01D29/15
Filed: 1966-02-21
Abstract: 1,128,482. Filter candle jacket construction. J. KUFFERATH. 21 Feb., 1966 [27 Feb., 1965], No. 7466/66. Heading B1D [Also in Division D1] A method of securing a jacket of wire gauze 3 around a filter candle 1 comprises placing rails 6 along the outer side of each splay 5, 6 so that the rails 6 are in "V" shaped relationship, welding the rails at the apex 8 of the V over at least parts of their lengths, and moving the rails towards one another to tighten the jacket 3 around the filter candle.
Patent GB-448140-A (GB)
Title: Improvement in a method of and apparatus for purifying air and other gases by centrifuging
IPC: B01D45/14
Filed: 1935-03-11
Abstract: 448,140. Centrifugal gas - cleaners. NEUMANN, W., Siedlung Ladeburg, Bernau, Germany. March 11, 1935, No. 7472. Convention date, March 26, 1934. [Class 23] Dust is removed from air or other gas by its passage through a rotor 3 while the gas moves parallel to the rotor axis from the inlet 2. The flow is divided into several separate streams by guide plates 5 and at the end of the rotor the flow of dust-free gas is diverted through 180‹ and passes axially through the fixed outlet 7. The dust particles are thrown to the wall of the rotor and their discharge through the pipe 13 is assisted by the fan 10 constructed at the end of the rotor. The driving motor 4 is arranged beneath the apparatus. In a modification slots are provided in the rotor wall for the passage of the dust. In a further modification the inner edges of the guide plates 5 are joined by a cylinder so that the streams of gas flow through enclosed compartments. In another modification the rotor is formed as a truncated cone 3, Fig. 5, with a fan 17 at its base corresponding to the fan 10 shown in Fig. 1 ; in addition a second fan 18 is provided to extract any dust which may be carried as far as the baffle plate 19 situated at the beginning of the outlet pipe 7.
Patent GB-315192-A (GB)
Title: Improvements in and relating to interchangeable, detachable heel wearing-pieces or pads for boots, shoes and the like
IPC: A43B21/39
Filed: 1929-03-11
Abstract: 315,192. Hutchison, F. A. March 11, 1929. Protectors, securing.-Interchangeable wearing - pads for boots and shoes comprise two concentrically engaging plates a, e, one, a, for attachment to the heel, and the other carrying the wearing piece or pad, one plate being formed with a channel or groove c, circular on those edges towards the back and sides of the heel, the other plate being constructed with circular edges corresponding to the channel or groove. Stops f on one of the plates at right-angles to the breast edge maintain the plates a, e in position. A notch k is provided in the plate e to facilitate forcing the plates sufficiently apart as to disengage one of the stops f from the breast edge, when it is desired to renew or interchange the pads. A keyway, cut half in each plate, and a spring key, may, alternatively, be provided, to lock the plates a, e.
Patent GB-144826-A (GB)
Title: Improvements in or relating to motion picture machines
IPC: G03B9/10
Filed: 1919-03-28
Abstract: 144,826. King's Patent Agency, (Burgess, M.B.). March 28,1919. Kinematograph apparatus; kinematograph systems; lens mounts.-A kinematograph projector is arranged so that the light beam has a point of convergence within the objective, and the shutter is adjustable on its driving-means so that it may be arranged at the point of convergence; the inner glass of the objective is adjustable simultaneously with the shutter, and the outer glass is adjustable independently. The shutter may be a reciprocating plate or a rotating disk. As shown in Fig. 1, the objective comprises an inner glass in a mount M, and an outer glass carried by a tube separately adjustable in the mount M. The mount M is adjustable in a housing 1 having a forwardly-extending lip 6 with outwardly-turned edges 7. A shutter guide 8 has grooves engaging the edges 7, and a slot through which a reciprocating shutter 11 slides, a corresponding slot being formed in the mount M. The shutter is carried by a knuckle joint from a clip 14 adjustable along an arm 15 pivoted at 16, and has shoulders engaging the ends of the slots in the guide 8. The lever 15 has a slotted end 17 engaging a pin 19 on a wheel 21 driven at twice the speed of a sprocket 20. In a modification, the shutter is a rotating disk adjustable along its shaft, and the mount M is in two sections connected by a U-shaped member carried by rings encircling the sections.
Patent GB-828731-A (GB)
Title: Artificial breathing machine
Inventor: WILLIAMS KENNETH GABRIEL
IPC: A61H31/00
Filed: 1957-03-11
Abstract: 828,731. Respiratory appliances. MINISTER OF SUPPLY. June 5, 1958 [March 11, 1957], No. 7891/57. Class 81 (2). Artificial respiration apparatus comprises an inflatable waistcoat 2, a head-piece 6 enclosing the patient's head, and an inflatable closuremember 8 which serves as a valve and is used to seal the head-piece or to allow its interior to communicate with the atmosphere. In use a continuous flow pump 11 supplies air to the helmet through a pipe 12 and, through a continuously rotating distributer valve 16, alternately to the waistcoat 2 through a pipe 14 and to the member 8 through pipe 13. At any instant the component not being supplied is connected to atmosphere through a pipe 15. Thus when the member 8 is inflated, to close the outlet, air is supplied to the head-piece and the lungs are inflated, after which the valve 16 moves round so that the waistcoat is inflated, to compress the lungs, while the exhaled air, together with the continuous flow from the pump 11, passes out of the head-piece, around the neck. Pressure limiting valves 13a, 14a are fitted in the pipes 13, 14 while pipe 12 is fitted with a rate of flow control valve 12a. Specification 822,020 is referred to.
Patent GB-323426-A (GB)
Title: Improvements in devices for cleaning and polishing knives, forks and spoons
IPC: A47L21/04
Filed: 1929-03-11
Abstract: 323,426. Janssen, J. March 11, 1929. Knives, forks, and spoons, cleaning and polishing. - A base plate 1 is provided with convex and concave spoon-supporting surfaces 18, 19, respectively, with a ridge 3 adapted to hold detachably a knife-sharpener 9 and two fork-cleaning implements 10, 11, with hooks 30, 31 for detachable polishing rubbers, and with a strip 28 of emery cloth or like material adapted to be used to renew the surfaces of the polishing rubbers. Knives being cleaned are supported at one end on a forked member 7 formed on the ridge 3 and at the other end below an adjustable clamp 6. The forked member may be in two adjustable parts with stepped edges to accommodate knife handles of different sizes. The forkcleaning implement 10 comprises a frame 15 supporting a coil spring 13, between the coils of which the prongs of the fork are engaged, the width of the coils being regulated by a pin 16 adapted to The engaged in one of a number of holes 16<a> in the frame 15. The implement 11 consists of an abrasive block formed with grooves 17 of different widths. The polishing rubber shown in Fig. 5, comprises an abrasive block 20 enclosed in a tubular casing 22 which is closed at one end by a detachable head 24. The block is provided with slots 26 to receive a detachable fastening pin 27 passing through a slot in the casing whereby the block may be advanced to compensate for wear. One end of the block may be grooved for use with forks. In the construction shown in Fig. 7, a felt or like pad 21 for polishing spoons is held in a tubular holder 23 by means of a fastening pin 27. The pad may be covered by a polishing cloth the ends of which are gathered round a waisted portion of the pad within the holder.
Patent GB-1194621-A (GB)
Title: Thermal Switch for Cryogenic Apparatus
IPC: F17C13/00
Filed: 1968-02-19
Abstract: 1,194,621. Thermal switches; refrigerating. CRYOGENIC TECHNOLOGY Inc. 19 Feb., 1968 [17 April, 1967], No. 8067/68. Headings F4H and F4U. A thermal switch comprises first and second heat conducting members which are in contact above a predetermined temperature and are secured to members of different coefficients of thermal expansion so that they move apart at lower temperatures, an enclosure formed in part by one of said heat conducting members and a fluid in said enclosure, the fluid providing a heat flow path between the spaced members and being condensable at a second predetermined temperature to prevent further heat flow. As shown, the first and second heat conducting members 11, 13 are respectively secured to cylinders 19, 14 which are jointly mounted on a sealing ring 16. The latter is connected to a heat exchange plate 15 and the device is arranged between the cold end 12 of a multistage refrigerator and a load 17. A gas, e.g. neon or nitrogen is provided in space 20, members 11, 13, 14 and 15 are copper and cylinder 19 is an iron-nickel alloy of low thermal conductivity and coefficient of expansion. In operation, members 11, 13 are initially in contact and heat is conducted from 17 to 12 via members 15, 16, 14, 13 and 11. At a predetermined temperature members 11 and 13 separate and heat conduction proceeds at a lower rate since the heat path now includes the gas in the gap 24 between members 11 and 13. Eventually the gas condenses through cryopumping and heat conduction ceases. Load 17 may then be cooled to a lower temperature by a helium coil 18. In one modification (Figs. 5 and 6, not shown) ring 16 is omitted and cylinder 14 replaced by a plurality of spaced rods; in another (Fig. 7, not shown), ring 16, cylinder 14 and member 13 are formed integrally and plate 15 is omitted. The switch may be rectangular in crosssection and may be connected between successive stages of a cold-gas refrigerator (Figs. 9 and 10, not shown) so that the larger capacity warmer stage assists in cooling down the colder stage until a predetermined temperature is reached.
Patent GB-152577-A (GB)
Title: Improvements in stitch forming mechanism for sewing machines
IPC: D05B57/02
Filed: 1920-03-19
Abstract: 152,577. Thompson, W. P., (Union Special Machine Co.). March 19, 1920. Multiple-needle machines. - The needlebar carries two pairs of needles 4, 5 disposed in parallel vertical planes oblique to the line of feed, each pair co-operating with a threaded looper 14, 15 which vibrates in the plane of that pair of needles with which it co-operates, as shown in the underside plan, Fig. 4. The loppers are mounted in a carrier 16 pivoted at 17 to an arm secured on a shaft 18 which is rocked through a link 19 by an eccentric on the main shaft 13 to move the loopers across the planes of the needles. The loopers are oscillated about the pivot 17 by a rod 20 connected to the needle-actuating lever. After entering the needle loops, the movement of each looper about the shaft 18 combined with the feed of the work and a returning movement of the looper, forms a thread triangle, as shown in Fig. 11, into which the respective pair of needles enter on their next descent. Needle guides.-For properly positioning the needles, a guard 22 is provided having surfaces 23, 24 adapted to contact with the needles 4, 5 respectively. The guard is carried by a bar 26 adjustably secured to an arm 28 and has two pins projecting lateraly one on each side of an eccentric on the shaft 13, the rear end of the arm 28 being carried on a pin 29 supported on a freely rocking lever.
Patent GB-569504-A (GB)
Title: Instrument mounting device
IPC: F16M11/12
Filed: 1943-05-24
Abstract: 569,504. Camera &c. mountings. RIES, P. J. May 24, 1943, No. 8270. [Class 52 (iii)] A support for photographic apparatus and other instruments comprises a base member adapted to be secured to a support (for example, a tripod head), an annularly-grooved instrument-holding connector rotatably attached to the base member by a socket and spring-pressed latching pin, and means for securing the connector in the socket against rotation. As shown, a camera is secured by a central screw to a connector C rotatably socketed in a member 44 and removably retained thereon by a spring-pressed latching-pin 80 entering an annular groove in the connector. After rotary adjustment the connector is clamped to the member 44 by a screw 74. The member 44 is pivoted by a pin 50 to a second member 43 pivoted between ears 32 projecting upwards from a rotatable base B. The pivots may be clamped after the various angular adjustments by means of screws 57, 42 and 29. A handle 65 which may be clamped in any convenient position around the member 44 is provided for convenience in moving or adjusting the parts. When the camera is to be used in positions overhanging roofs or other elevated positions a Z-shaped extension bracket may be interposed between the connector C and the camera.
Patent GB-416277-A (GB)
Title: Sewing machine
IPC: D05B73/12
Filed: 1934-03-16
Abstract: 416,277. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) March 16, 1934, No. 8294. [Class 112.] The feed-wheel 27 of a buttonhole-stitching machine is disengaged from the driving shaft 58 by the depression of a finger-lever 79 and the machine is stopped at any point in its cycle by a longitudinal movement of the lever 79. The depression of the lever 79 rotates a pinion 80 and disengages a gear 61 from the driving shaft. The longitudinal movement of the lever 79 rocks a lever 85, disengages teeth 42, 43, and permits the spring pressed belt shipper 29 to carry the belt 28 to the loose pulley 13. When disengaged from the main shaft the feed wheel is moved to any desired position by a pawl and ratchet. A step-by-step motion is given to the feed-wheel by a main-shaft driven star wheel 57.